Home / 3,560.82-5,339.78-1,479.40

Finding the Fourth Proportional to 3,560.82, 5,339.78 and 1,479.40

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Solution

The fourth proportional to 3,560.82, 5,339.78 and 1,479.40 is: 2,218.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,560.82 : 5,339.78 = 1,479.40 : x
  2. Step 2: Convert to fraction form
    3,560.82/5,339.78 = 1,479.40/x
  3. Step 3: Cross multiply
    3,560.82x = 5,339.78 × 1,479.40
  4. Step 4: Simplify right side
    3,560.82x = 7,899,670.53
  5. Step 5: Solve for x
    x = 7,899,670.53/3,560.82
  6. Step 6: Final answer
    x = 2,218.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.